Finding the Fourth Proportional to 1,789.75, 2,469.90 and 1,003.96

Step by Step Solution

1. Step 1: Write the proportion equation
   1,789.75 : 2,469.90 = 1,003.96 : x
2. Step 2: Convert to fraction form
   1,789.75/2,469.90 = 1,003.96/x
3. Step 3: Cross multiply
   1,789.75x = 2,469.90 × 1,003.96
4. Step 4: Simplify right side
   1,789.75x = 2,479,680.80
5. Step 5: Solve for x
   x = 2,479,680.80/1,789.75
6. Step 6: Final answer
   x = 1,385.49